NOTE: I got three different items so all the reviews for them will read the same. After talking to various luthiers around town, I was leary of buying parts: "well, they may not fit, the specs change," that sort of thing. But I jumped in, was able to replace all the necessary parts on my 1977 Les Paul Standard myself. Everything fit perfectly!!!! So I'll ber doing the same to my 1955 Les Paul Pro. Thanks Musician's Friend!!!!